Hi Eric! I really appreciate you taking the time to look at this.
This is only one particle system with one particle effect inside. It consists of:
Required
Spawn
Lifetime
Initial Size
Initial Velocity
Color Over Life
Initial Rotation
Size by Life
Drag
Initial Rotation Rate
Rotation Rate * Life
Dynamic
Sphere
It is not set to have a TypeData > New GPU Sprites, so I’m assuming this is a CPU particle system.
Full image of the material. It’s Translucent blend mode, and the shading model is set to Default Lit.
[edit]
Switching to Unlit fixes the problem in the Effects level (although now it looks terrible!). Both Default Lit and Unlit seem to not have this issue if I throw the particle in a new blank level. I think something funky is happening in the Effects level that affects my particle system. Let me know if you think this is a bug and need any more information.